buildx failed with: ERROR: failed to solve: failed to read dockerfile: open Dockerfile: no such file or directory

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/setup-python@v4, docker/login-action@v2. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/